Recent comments by Olba:

Yup, this takes place during the 1 year that’s missing between R1 and R2. Lelouch died in 2018, whereas the PV clearly states that it’s the year 2017. Please do everyone a favor and stop spouting crap about Lelouch being alive after R2.

Monogatari is halfway down the list and it somehow gets the header pic? That’s a bit strange. Maybe I’m in the wrong corner of the interwebz here, but I would think that a listing like this would call for official art and not fanservice of secondary characters.

And this is one of those things that the whole show has been inconsistent about. In the beginning of SAO, some avatars get genderswapped due to Kayaba’s trickery. This implies that some players were making avatars of the opposite gender. However, later on Kirito mentions that due to some issues in the beta testing, SAO would not allow players to have avatars of opposite gender. In fact, the only cases we have seen of opposite gender avatars were those random players at the very beginning of SAO …